Improvement in machines for cutting cloth



s'sh l'--sh' 1. A. HELLER; e eet 4 Machines for Cutting Cloth.

: Patented Apr{30,1872.

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A. HEUER. Machines for Cutting Cloth.

Patented April 30,1872.

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A. H E L L E R.

Machines for Cutting Cloth. N0. 126,207, Patented April30,1872.

TATEs .LriiEiv'i1 EErcE.

4ANDREW HELLEE, 0E NEW YORK, N. Y,

Speciiicationiforming part of Letters PatentNo. 126,'207, dated April30, 1872.

lSpecification describing av'lnew and Improved Machine for CuttingCloth, &c., invented by ANDREW HELLER, of the city, county, and State ofNew York.

Figure l represents a plan or top view of my improved machine forcutting cloth,:&c. Fig. 2 is a side elevation ofthe same. Fig. 3 is avertical longitudinal section of the same taken on the plane ofthe linec c, Fig. 1. Fig. 4 is a vertical transverse section on the line kk,Fig. 3. Fig. 5 is avdetail perspective view of the feeding-clasp.

Similar letters of reference indicate corresponding parts.

This invention relates to a new'machine for cutting the cloth used inthemanufacture of clothing, and for other purposes, and oth er fabrics intocertain denite shapes, and consists, principally, in the employment lofa verticallyreciprocating continuous cutting-blade; in the combinationtherewith of marking troughs and apertures in the plate to which saidblade is attached; and in the arrangement of a clamp for feeding thefabric to be cut to its place nnder the cutter, all as hereinafter morefully described.

Ain the drawing represents the frame of the machine. It is made of metalor other material, preferably in form of a rectangular table, as shown.From this table project two upright frames, B B, which serve as guidesfor a vertically-adjustable horizontal frame, C, that is, by means ofscrews a a at its ends, suspended from the said'frames B B, as shown.The screws a, a, have bevel-gear wheels b b at their upper ends, thatmesh into similar wheels on a horizontal shaft, D, hung in the frames B.The shaft D has a crank-handle, whereby it can be turned in order torevolve the screws a a and set the frame C higher or lower, as may berequired. From the longitudinal side pieces d d of the frame C aresuspended a series of toggle-1evers,E E, of equal lengths, their lowerends allbeing connected with a horizontal plate or frame, F. The jointsof all the toggles E E on each side of the machine are, by means oftheir pivots e e, connected with a longitudinal bar, f, there being thustwo such bars f, one on each side. One end of everybar f is, by apitmamg, and lever, lz, or by equivalent means, connected to aneccentric, i, on a shaft, Gr, in such manner vtirely upon the bed lto becnt.

that when rotary motion is imparted to said shaft Gr by gearing or otherconnection with the driving-shaft H ofthe machine, the bars f 'f will bemoved back and forth to alternately spread. and contract the'toggles,and thereby alternately' lower and elevate'the plate or frame F. To theunder side ofthe plate or frame F is fastened, by means of screws thatpass through projecting ears jj the cutting-blade I, the same being ofthe form of the piece to be cut out. Thus when the frame F is moved downby the mechanism above described, or by other equivalent mechanism, thecutting-blade will, at one stroke, cut the fabric beneath it into theshape to which it--the blade-has been formed. The fabric is conveyed tothe bed l, in which it is to be cut, first, by and between series ofrollers, J J. When its end arrives on the bed l it is clasped betweentwo jaws, m an, which constitute the feed-clamp L. This clamp is pushedalong by means of ears mt that project from two endless belts, M M, atthe sides of the frame A, and draws the fabric en- When the ears n ofthebelts M pass around'the forward pulleys o o of said belts, and thusleave the clamp L, the latter is drawn back by a springroller, N, withwhich it is connected by strings or bands, p. This roller N, which may,in place of the spring q, have a weight to actuate it, is unwound whilethe clamp J is moving ahead. `In being drawn back, the jaws m of theclamp open, so as not to affect the fabric, which remains undisturbedupon the bed l. In order to insureI bringing the fabric to be cut intoproper position, a marker, P, is applied above the frame F, being heldelevated by means of springs r 1' that rest on F. Thismarker P is aplate, having troughs or grooves S S on its top, of the same form andoutline as the cutter-blade I, and perforated, each perforation having adownwardly-projecting tubular extension, t. A lever, u, pivoted to theframe C, bears on a post, lv, projecting from the plate P. Whenever thefabric has arrived in position on the bed l, the operator first swingsthe lever u down to lower the plate P and bring the ends of the tubes tt in contact with the fabric. White powder being placed into the troughsor grooves s, will thus, through the tubes t, be caused to mark thefabric by clotting it in the line of the cutter. The operator is thusenabled to observe whether the fabric is in the right position under thecutter or not, and to rectify, before cutting, the position of thefabric, so that the process maybe carried out most economically. Notuntil the fabric has been properly placed will the cutter Vbe allowed todescend.

The bed l is formed of wood or other material, preferably of narrowboards set on edge, to have the grain in line with the movement of thecutter.

Motion is imparted to the several shafts, rollers, Snc., by steam ormuscular power.

It will be observed that the mechanism described for moving the knife isextremely powv erful, and apt to carry the knife through severalthicknesses of the heaviest fabric. However, other mechanism may besubstituted for moving the knife.

The frame C is adjustable, by means of the Screws a, for letting theframe E more or less down, according to the length of cutting-blade.

Having thus described myinvention, I claim 'as new and desire to secureby Letters Patbined with the marker P, as and for the purpose hereinshown and described.

5. The feed-clamp L, composed of the jaws m m, and operated by the beltsM and spring-l roller n, substantially as herein shown and described. y

ANDREW HELLER.'

Witnesses:

GEO. W. MABEE, T. B. MosHER.

